Wife went to her parents

She (28) was a christian and i (35) am a muslim guy working in same office. She told me that she has step mother and cruel father. She started talking me more over the phone. She met my sisters and brother ( i dont have parents) then she expressed her desire to marry me and i did not refuse as i was alone, wanted to marry and i liked her and thought that she is also living a tough life. Then one day she told me that her parents are turning her out from the house as she had told them about me. She left her home and came and i married her on 8th april 2015. She left the job and we made our small world. We became parents of a son on 1st january 2017. Her family had shifted to goa from delhi. In may 2017 she told me that her mother talked her and she wanted her to visit them and wanted to see the baby. I booked her tickets to goa for 15 days and sent her. Then her mother father and sister talked me and called me there too. I went there for 2 days met them and came back with my family. I realized that my wife told a lie about her family as the mother was real not step and father was not like that also. I asked my wife and after long try she admiited. I let it go as i did not want to spoil my family. Her mother came to my place then and we again visited goa to celebrate baby's first birthday. In march 2018 my wife told me that she has a doubt of pregnancy as she is not down for 2 months, mother in law also advised me to get the second baby aborted to keep gap. I refused to do so and scolded my wife that she should have told me earlier an now i will not abort the baby. Mother in law came in the end of the month however she did not discuss this matter. When she went back after few days I took my wife to the doctor and came to know that pregnancy crossed 6 months and expected delivery date is in july. I was shocked and asked my wife. She said that she doesnt know anything how. Mother in law said she has a problem that sometime she is not down and sometimes late. I could not digest this and had an arguement why she hide like this and why she told me so late. I never beat her except scolding. Then mother in law asked me to send her to goa for delivery. I refused and said if you want to help you can come here. I was disturbed however after 4-5 days i became normal. On 9th april i bought her a new phone even. On 10th april 2018 at 9 in the night when i was going to office she told me that her mother booked ticket and she is going tomorrow morning for 5 days. I was angry that neither she nor mother asked me. I tried to stop her but she went and 7 days no phone or msg. I started talking her asked her to come back but she refused. I went to goa to bring her back but her parents insulted me didnt let me enter and asked me to go back. I wanted to spend sometime with my son and wife but her mother did not let me talk to her nor show my son. My wife was silent and did not say anything. Mother continued to say we dont want to continue this relation. What to do